Melt blowing apparatus for producing a layered filter media web

Details Melt blowing apparatus for producing a layered filter media web Melt blowing apparatus for producing a layered filter media web

1996-07-08

1999-04-06

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

4251925, 4253782, 425463, B29C 4712

Patent

active

058914820

ABSTRACT:
A die apparatus wherein a layered web of melt blown fibrous filter media is produced by a unitary die including several die sources with facing layers of the fibrous filter media being attenuated by opposed fluid streams at preselected included angles and with the fiber layers being free from bonding together and with the fibers in each layer being minimally bonded.

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patent: 5523033 (1996-06-01), Shambaugh

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